forbes



2 Sheets-Sheet 1.

Patented Mar. 17. 1885.

J. FORBES.

SEAL LOCK FOR UAR DOORS.

llllllfilllllllll (ModeL) a w c (ModeL) 2 S'heet s-Sheet 2. J. FORBES. SEAL LOOK FOR OAR DOORS.

No; 314,009. Patented Mar. 17, 1885.

N. versus Phmoliuwgmphur. Washingiu. ac.

UNITE JOHN FORBES, OF HALIFAX, NOVA SGOTIA, CANADA.

STEAL-LOCK FOR CAR-=DOORSL SPECIFICATION forming part of Letters Patent No. 314,009, dated March 17, 1885.

' Application filed June 9, 1884. (ModeL) v To aZZ whom it may concern.-

Be it known that I, JOHN FORBES, of Halifax, in the Province of Nova Scotit, Canada, have invented a new and useful Improvementin Seal-Locks for Car-Doors, of which the following is a full, clear, and exact description.

Thisinvention has reference to an improvement on the seal-lock patented to myself and H. M. WVilliston on the 6th day of March, 1883, in Letters Patent numbered 273,267. As the locking mechanism is the same in the look now improved as that shown in the lock of said Letters Patent, such locking mechanism will not be here described, nor shown in detail in the drawings, except so far as it will be necessary to explain the improvement I have made on the seal-lock.

The object of my invention is to prevent the paper seal being withdrawn in any event, except by defacement, and thus not allow of its use thereafter as a perfect seal In the drawings, Figure l is a viewof a freight-car door with the seal-lock attached thereto. Fig. 2 is a plan view of the seallock, showing the paper seal in position and the device'locked. Fig. 3 is a similar View of the lock, but showing the slide pushed up in order to get at the unlocking-pin, and the consequent defacement of the paper seal. Fig. 4 is a vertical longitudinal central section taken in the line it x of Fig. 8, the plate and locking-pin shown as thrownback in order to release the car-door staple and to insert a fresh paper seal. Fig. 5 is a vertical longitudinal section of the seal-lock. Fig. 6 is a View of the seal-lock from the under side.

a is the seal-lock frame or. casing. bis a plate hinged to this frame, carrying the an tieulated locking-bolt c.

d is a bent rod, the bent end resting in a recess in order to be covered or confined therein by sealing with the superimposed paper seal. The lock cannot be opened without breaking or the removing of such paper seal and turning the bent end (1 of the rod sufficient to bring its lower end into opera tion with locking mechanism in the lower portion of the case, and thereby release the bolt 0, which locking mechanism and operation thereof, in combination with said rod d, will all be found fully described in said Patent No. 273,267, and need not be here described.

6 is a slide-plate passing between the face of the lock and the hinge of the plate b. This plate has an opening in it, so that the paper seal is visible over the bent rod d, and slides in grooves made in the side walls of the eas- 1ng.

f f are narrow strips or arms of spring steel, one on each side of the slide-plate e, at; tached thereto about halfway of its length, and containing on their lower sides pins 9 g, &c. These pins, when the said strips of steel are pressed down,pass into holes or openings h h, &c., made in the slide e, so that when a sealis placed between these strips of steel and the slide locked by the closing of the plate b, as seen in Fig. 2, the said pins 9 9 will pass through the sides of the seal and into such holes h h, and securely hold the seal over the bent rod, so that it cannot be removed therefrom by picking and consequent defacement or by the opening of the lock, except by the pushing up of the slide-plate e and the complete defacement of the seal, as seen in Fig. 3.

The operation of the improved portions of the seal-lock is as follows: The plate b and the locking-bolt c are thrown back, as seen in Fig. 4:. A seal is then inserted between the pinsgg, 820., of the spring-arms ff and the holes h'h, &c., in the slide 6. The slide is then pulleddown over the bent rod d that is, into the position shown in Fig. 2-and the plate 12 and locking-bolt c thrown forward, thus locking down the paper seal securely.

In order to get atthe bent rod d to open the lock,and thus release, the plate I) and locking-bolt o, the slide-plate 0 must be pushed forward, which, while such movement exposes to view the end of the bent rod 01 it at the same time causes the said plate to ruckle up and destroy the paper seal. This position of the slideplate e and consequent destruction of the seal is seen in Fig. 3.

I claima 1. In a seal -lock, the combination of a slide-plate, c, with spring-arms f f, said arms provided with pinsg adapted to pass into ings h h made in the slide-plate 6, plate I), openings h h made in such slide-plate e, and bolt 0, and rod (2, substantially as and for the a bolt-locking mechanism, substantially as purposes described.

and for the purposes described. JOHN FORBES. 5 2. In aseal-lock, the combination of a slide- Witnesses:

plate, e, with spring-arms f f, said arms pro- J AMES H. HUNTER,

vided with pins 9 57, adapted to pass into open- A. M. TODD. 

